Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 240mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke240 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-30
The AirTAC SAIJ80X240-30 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N of push force at 0.5 MPa, making it well-suited for heavier actuation tasks. The integrated rear stopper allows you to trim the effective travel down by up to 30 mm, providing a usable stroke window of 210 to 240 mm without needing external stops.
This model features an SUS420J2 stainless steel rod for enhanced durability against moisture and PT tapered port threads for a secure pneumatic connection. It retains the standard extruded aluminum barrel with dual sensor grooves, though this specific SKU is configured without a magnet. The rear adjuster acts strictly as a travel stop to fine-tune the end position at commissioning and does not lock or hold the load without continuous air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 240 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×240 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-30 Is Used
Variable End-Stop Positioning
Dial in the exact retraction point within the 210-240 mm window during machine commissioning to accommodate different material thicknesses without adding external stopper blocks.
Product Changeover
Quickly adjust the rear stroke stopper by up to 30 mm when switching production lines to new part sizes, reducing setup downtime on heavy 80 mm bore actuators.
Heavy Assembly Pressing
Leverage the 2513N push force at 0.5 MPa for pressing and seating components, using the adjustable stroke to fine-tune the pressing depth accurately.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-30 the Right Cylinder?
Choose this 80 mm bore cylinder when your application requires substantial force that a 63 mm bore (providing 1559N push at 0.5 MPa) cannot deliver, but you want to avoid the larger footprint of a 100 mm option. The 30 mm adjustment range is ideal for machine setups requiring variable end-stops during product changeovers, eliminating the need to physically swap out a fixed-stroke SAI cylinder. To replace an ISO 15552 cylinder, match the 80 mm bore, 240 mm stroke, PT port threads, and mounting style.
Because the total stroke is 240 mm, ensure adequate guidance for any side loads. Remember that the SAIJ mounting hardware is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2 options. For applications requiring the load to be held mechanically without live air pressure, a standard SAIJ is insufficient; consider an AirTAC SAIL or BSAI locking cylinder instead.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-30 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 240 mm nominal stroke by up to 30 mm. This creates a usable travel window of 210 to 240 mm for fine-tuning the end position at commissioning.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.